我把一个ts文件转js时为什么node_modules/@types/mocha/index.d.ts文件会报错,这不是自带的标准文件吗?
node_modules/@types/mocha/index.d.ts:2650:13 - error TS2403: Subsequent variable declarations must have the same type. Variable 'beforeEach' must be of type 'Lifecycle', but here has type 'HookFunction'.
2650 declare var beforeEach: Mocha.HookFunction;
~~~~~~~~~~
node_modules/@types/jest/index.d.ts:34:13
34 declare var beforeEach: jest.Lifecycle;
~~~~~~~~~~
'beforeEach' was also declared here.
node_modules/@types/mocha/index.d.ts:2668:13 - error TS2403: Subsequent variable declarations must have the same type. Variable 'afterEach' must be of type 'Lifecycle', but here has type 'HookFunction'.
2668 declare var afterEach: Mocha.HookFunction;
~~~~~~~~~
node_modules/@types/jest/index.d.ts:36:13
36 declare var afterEach: jest.Lifecycle;
~~~~~~~~~
'afterEach' was also declared here.
node_modules/@types/mocha/index.d.ts:2684:13 - error TS2403: Subsequent variable declarations must have the same type. Variable 'describe' must be of type 'Describe', but here has type 'SuiteFunction'.
2684 declare var describe: Mocha.SuiteFunction;
~~~~~~~~
node_modules/@types/jest/index.d.ts:37:13
37 declare var describe: jest.Describe;
~~~~~~~~
'describe' was also declared here.
node_modules/@types/mocha/index.d.ts:2705:13 - error TS2403: Subsequent variable declarations must have the same type. Variable 'xdescribe' must be of type 'Describe', but here has type 'PendingSuiteFunction'.
2705 declare var xdescribe: Mocha.PendingSuiteFunction;
~~~~~~~~~
node_modules/@types/jest/index.d.ts:39:13
39 declare var xdescribe: jest.Describe;
~~~~~~~~~
'xdescribe' was also declared here.
node_modules/@types/mocha/index.d.ts:2719:13 - error TS2403: Subsequent variable declarations must have the same type. Variable 'it' must be of type 'It', but here has type 'TestFunction'.
2719 declare var it: Mocha.TestFunction;
~~
node_modules/@types/jest/index.d.ts:40:13
40 declare var it: jest.It;
~~
'it' was also declared here.
node_modules/@types/mocha/index.d.ts:2733:13 - error TS2403: Subsequent variable declarations must have the same type. Variable 'test' must be of type 'It', but here has type 'TestFunction'.
2733 declare var test: Mocha.TestFunction;
~~~~
node_modules/@types/jest/index.d.ts:43:13
43 declare var test: jest.It;
~~~~
'test' was also declared here.
node_modules/@types/mocha/index.d.ts:2740:13 - error TS2403: Subsequent variable declarations must have the same type. Variable 'xit' must be of type 'It', but here has type 'PendingTestFunction'.
2740 declare var xit: Mocha.PendingTestFunction;
~~~
node_modules/@types/jest/index.d.ts:42:13
42 declare var xit: jest.It;
~~~
'xit' was also declared here.
Found 7 errors in the same file, starting at: node_modules/@types/mocha/index.d.ts:2650
Mocha and Jest 冲突哪,你能禁用一个么
该回答引用ChatGPT
如有疑问,可以回复我!
这个错误是因为在转换ts文件为js文件时,TypeScript编译器发现了多个定义同名变量的声明,这些变量都具有不同的类型。
在这种情况下,TypeScript会将多个声明视为重复声明,因为它无法确定应该使用哪个类型定义。这是TypeScript的设计决策,因为它确保代码的类型安全性。
解决这个问题的方法是检查你的代码,确保不会重复定义同名的变量,或者使用命名空间来解决命名冲突。
在这个特定的错误中,可能是因为你同时使用了Mocha和Jest库,而这两个库中的变量具有相同的名称,因此导致了冲突。你可以尝试通过更改变量名或使用一个库来避免这种冲突。
参考GPT和自己的思路,这个错误是因为在两个不同的类型定义文件中对相同变量进行了冲突的声明 - 一个是针对 Mocha 的,另一个是针对 Jest 的。要解决这个错误,你可以尝试以下步骤:
1.确保你已经安装了最新版本的 @types/mocha 和 @types/jest 包。
2.检查你的项目中是否同时使用了 Mocha 和 Jest。如果没有,你可以删除你不使用的包。
3.如果你同时使用了 Mocha 和 Jest,可以尝试在其中一个包中将冲突的变量重命名以避免冲突。例如,你可以将 @types/jest 包中的 beforeEach 重命名为 jestBeforeEach。
4.或者,你可以尝试使用命名空间导入来避免命名冲突。例如,不要像这样从两个包中导入 beforeEach:
import { beforeEach } from 'mocha';
import { beforeEach } from 'jest';
而是将它们作为命名空间的一部分进行导入,像这样:
import * as mocha from 'mocha';
import * as jest from 'jest';
// 使用 Mocha 中的 beforeEach
mocha.beforeEach(() => { ... });
// 使用 Jest 中的 beforeEach
jest.beforeEach(() => { ... });
这将避免命名冲突,并允许你在项目中使用这两个包。
5.如果这些解决方案都不起作用,你可以尝试删除一个类型定义文件或使用一个与 Mocha 或 Jest 不冲突的不同测试框架。
希望能帮你解决问题!!!
参考GPT和自己的思路:这个错误是因为您的项目同时引入了 @types/mocha 和 @types/jest,这两个库都定义了同名的全局变量(如 beforeEach、afterEach、describe 等)。您可以尝试卸载其中一个库,或者在 tsconfig.json 中将 types 属性的值修改为只包含您需要的库,以避免命名冲突。